A fully automatic PT system for fluorescent penetrant testing of ceramic rings was implemented for a major German customer. A reliable reproducibility of the adjustable parameters as well as the testability of a large spectrum of parts were of great importance.
The pre-cleaned components are placed on specially coated workpiece holders for testing, which prevent damage to the surface. At the same time, the carry-over of testing liquids is significantly reduced by optimised dripping, which considerably lowers the costs of consumables. After dipping and dripping, a two-stage washing process takes place: first by oscillating dipping in water, then by spraying in a washing chamber. All parameters such as test cycles and washing times can be stored individually for each component via the PLC. In addition to the temperature and pressure of the wash water, fill levels are also measured so that all important test parameters are monitored.
Prior to the final developer application, the parts still have to be dried. The drying oven is also equipped with an automatic transport system and a position monitoring system for the workpice holders. After drying, self-development follows, i.e. the test is performed without developer.
At the end of the line, the workpiece holders are pulled onto modular transport trolleys, which can be attached to the output station, and then pushed to the respective viewing station.
This ensures convenient handling of the workpiece holders and components for the inspectors. With the trolley, the newly loaded workpiece holders can then be fed into the testing system. This system design can be adapted and configured for a wide range of components. If you are interested in such a testing system, our experienced staff will be happy to assist you.